FB3G310-4AAL-60 Backward Curved Centrifugal Fan, 380VAC, 310mm, 3019.6 m3/h

The FB3G310-4AAL-60 is a heavy-duty backward centrifugal fan engineered to deliver a massive 3019.6 m³/h of airflow while maintaining a high static pressure of 905 Pa, making it a powerhouse solution for demanding industrial and HVAC applications. This 380VAC model operates on a 304V input range, drawing just 0.6A and consuming 385W, which translates into exceptional energy efficiency for its output class. At its core lies a BLDC EC motor with a 102mm rotor, offering precise speed control and superior reliability compared to traditional AC motors. The 310mm die-cast aluminum impeller ensures robust construction and corrosion resistance, ideal for continuous operation in harsh environments. With a noise level of 78.4 dB(A), it manages to balance high performance with acceptable acoustic output for industrial settings. The fan includes a 1000mm 18AWG cable for straightforward installation, and its IP55-rated protection safeguards against dust and water ingress. This model is perfect for large-scale ventilation, filtration systems, and equipment cooling where both volume and pressure are critical. Certified to international standards, the FB3G310-4AAL-60 from FANOVA exemplifies reliable, high-output fan technology for OEM and ODM projects.

The FB3G310-4AAL-60 represents a pinnacle in high-static-pressure backward centrifugal fan design, specifically engineered for applications demanding a combination of volumetric flow and pressure resilience. The impeller, with a diameter of 310mm, is precision die-cast from aluminum alloy, a material choice that provides an optimal strength-to-weight ratio, excellent thermal conductivity, and inherent resistance to corrosion and fatigue. The blade geometry is aerodynamically optimized for backward-curved operation, which minimizes turbulence and maximizes efficiency across the entire performance envelope, from free-air delivery up to the maximum static pressure of 905 Pa. This design allows the fan to overcome the resistance of long duct runs, high-efficiency particulate filters, and multi-outlet plenums, ensuring consistent air movement in challenging system architectures. The motor is a BLDC EC type with a 102mm rotor diameter, representing the latest in brushless DC technology. It integrates a permanent-magnet synchronous design that delivers high torque density while maintaining an efficiency that significantly reduces operational costs compared to induction motors. The motor's electronic commutation eliminates brush wear, extending service life to over 50,000 hours under typical operating conditions. Speed control is achieved via an integrated EC controller that accepts a 0-10V or PWM signal, allowing for seamless modulation from 0 to 2650 RPM. This variable-speed capability enables precise airflow matching to system demand, reducing energy consumption and noise during part-load operation. The electrical system is rated for 380VAC with a wide input tolerance of 304V, ensuring stable operation on fluctuating industrial grids. The fan draws a nominal current of 0.6A and consumes 385W at full speed. For electrical safety, the motor is equipped with Class F insulation and built-in thermal protection that triggers at over-temperature conditions, preventing winding damage. The housing and endcaps are also constructed from die-cast aluminum, providing a rigid frame that reduces vibration and maintains rotor-stator alignment. Bearings are sealed, pre-lubricated ball bearings rated for an L10 life of 40,000 hours at the maximum ambient temperature, ensuring long-term reliability without maintenance. The electrical interface consists of a 1000mm long, 18AWG cable that provides a robust connection for power and control signals. The entire unit is protected against dust and water jets, achieving an IP55 ingress protection rating, which makes it suitable for outdoor installations or washdown environments. Each fan is subjected to rigorous quality control, including dynamic balancing and performance testing, and complies with CE and RoHS directives. This model, ideal for OEM integration into air handling units, cleanroom systems, and industrial process equipment, underscores FANOVA's commitment to delivering high-pressure, high-flow, and high-efficiency fan solutions.

DC Backward Curved Centrifugal Fan
Type	FB3G310-4AAL-60
Model	BLDCEC102

Ⅰ.When taking out the fan, do not directly lift the fan lead wire. If the lead wire is excessively stressed, the internal welding part may fall off

Ⅱ.Do not plug or unplug the fan lead plug when the fan is running

Ⅲ.If the fan does not work after starting, do not touch the impeller, rotor, or other parts, professional technical personnel are required to inspect the fan to prevent sudden start of the fan from causing hand or other personal injury

Ⅳ.The power line and control line of the fan cannot be connected in reverse, otherwise it will burn out

Ⅴ.Because of the soft start characteristics of the fan, to prevent personal injury, do not touch the impeller or other parts of the fan during powered on or running at low speeds

Ⅵ.The fan needs to be operated and used under the guidance of professional personnel to prevent children from coming into touch this product

Ⅶ.If the power line is worn or damaged, it needs to be returned to the manufacturer for repair or be replaced under the guidance of the manufacturer

Ⅷ.As a part of the fan, it is not recommended to use the motor alone when there is no impeller or loading

1. High Efficiency: The FB3G310-4AAL-60 delivers 3019.6 m3/h at 905 Pa while drawing only 385W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 310mm galvanized steel sheet impeller resists corrosion, wear and high temperatures, making the fan suitable for harsh industrial environments and corrosive gas streams.

3. Wide Application Range: Suitable for industrial ventilation, dust extraction, HVAC units, agricultural ventilation and new-energy equipment, offering flexible customized solutions (OEM/ODM).

4. Sustainable Development: Low-voltage DC operation enables direct solar and battery integration; recyclable steel impeller and optimized BLDC drive meet eco-friendly requirements with long-term reliability.

5. Easy Installation and Maintenance: Compact 310mm footprint, 0-10VDC/PWM speed control, FG tach output and standard cable make the fan simple to wire, control and service.

Q1:What kind of payments do you support?

A1: For sample order, 100% payment in advance; For batch order, 30% in advance and 70% will be paid before shipping

Q2.Will you provide samples?

A2: Sample is available and can be delivered within 10days

Q3:How can I choose a more suitable model?

A3: We need the information like fan type, quantity, size, material, voltage, air flow and static pressure.

Q4:How can I place the order?

A4:  Usually quote you within 24 hours  after  we get your inquiry. First sign the PI,pay deposit,then we will arrange the production.After finished production need you pay balance. Finally we will ship the Goods.

Q5:About transportation

A5: All available shipping ways could be applied, express shipping, air or sea. Appointed shipping company or our own forwarders all could be used in shipment. Full-way tracking the cargos for you before the goods arrive. 

Q6:How long is the warranty period?

A6: We currently offer 3-year quality guarantee for our own products, and in response to current product problems, our company provides line support, and some customers have been able to improve their products.